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Over the years, Prolimatech PK-1 has become one of the hardware testers’ favorite. It is not hard to see why. PK-1 is a premium grade of thermal compound that is easy to spread and is reliable throughout the year. It will not dry out while continuing to provide good heat transfer from your CPU to your heatsink base. Performance-wise, Pk-1 is a contender for the top spot as it beat other major brands of thermal compound in the market. To maintain top condition, we highly recommend reapplying PK-1 every year.

Excellent long-term stability The non-corrosive thermal compound features low dry-out. Having no conductive material, the Prolimatech PK-1 will not result in any damage even when it contacts to electrical traces, pins and leads.

Learn more about the Prolimatech Inc. PRO-PK1-5G

Model

SPEC

Features

Features

Excellent long-term stability

Non-electronically conductive

Non-corrosive

Easy to apply and less to use

Low dry-out

Quick Info

WarrantyBeyond any applicable Newegg return policy, this item is warranted independently by the product's Manufacturer or a Third party. Below is a summary provided for convenience only and may not be accurate or current.
Read full details.

Rating: 5/5

Pros: Lowered temps a couple of degrees more than AS 5, but that could be due to the AS 5 being fairly old and they recommend replacing about once a year. That said, the PK-1 doesn't need to be replaced as often, so props there.

Cons: The cap was a bit tough to remove for the first time, but it's nice to know it's well secured and sealed from drying out.

Rating: 5/5Impressive

Other Thoughts: I used this to replace the thermal compound in my XPS 17 laptop. On both the Nvidia GPU and for the updated processor I bought. I did that one year after owning the laptop and it has been another year and a half of regular use since then. Still only gets luke warm when playing games like Borderlands 2 or Skyrim

Rating: 5/5Best TIM for the price

Pros: – Been using Arctic Silver for the longest time (blind obedience) and it was time to try something new because I found a serious flaw with AS.

– No cure time and doesn't dry out after a year. What many fail to mention is that this paste is far superior on medium to poor contact surfaces vs other popular TIMs like Arctic Silver.

I have a MSI 6970 Lightning (dual monitor) and the stock cooler has very poor contact with the GPU. Arctic Silver, no matter how many times I reapplied it, and using all application methods failed to keep the card cool under load, always going over 75C sometimes hitting 80C, gets worse as time goes on and dust accumulates.

After applying PK-1, temps under the same load kept the card under 70C (hovers around 66-68C)

Cons: None

Other Thoughts: Arctic Silver requires good to perfect contact to work well, in fact many pastes work well with good to perfect contact. What's important is the TIM works even when the contact is poor like on direct heatpipe CPU coolers. Under those applications Arctic Silver will flat out fail.

Rating: 5/5

Pros: One of the highest rated thermal compounds on the market. I didn't have any other paste to try with, but the Prolimatech was easy to apply and seems to work. Overclocked to 4.5ghz my 4670k gets up to 80C running 100%.

Cons: Came with enough to apply more than 10 times..way more than I'll use in a long time.

Rating: 5/5Great thermal paste!

Pros: Used it in my new build (both sides of the CPU IHS after de-lidding my processor), great temps, idles about 34c under my Zalman LQ-320, and I never see the processor go over 56c. And it's overclocked to 4ghz from 3.5ghz (i5 Haswell 4670k).

Cons: A little thick out of the tube, if I have to say anything negative. It still spread fine, and is otherwise as good as or better than Arctic Silver, and I've used that stuff for years.

Other Thoughts: If you're hedging on this stuff over Arctic Silver 5, go with this. Much more quantity for the price and it's great stuff.

Rating: 5/5A-Lot of Compound

Pros: For an average user, this is essentially a lifetime supply of compound. I used it to re-do my Mac laptop and may have used perhaps 2 to 5% of the tube. It seems to be working fine and it's nice that this is not electrically conductive since the Mac has some exposed resistors on top of the chips. Has a nice cap to keep it from drying out.

Cons: The only con is the same as the pro - this is way more compound than an average user will ever use.

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